单词	octagon
释义	octagonoctagon /ˈɑktəˌgɑn/ noun [countable] Etymology ETYMOLOGYoctagon Origin: 1500-1600 Latin octagonum, from Greek, from okta- eight + -gonon -gon math, geometry a flat shape with eight sides—octagonal /ɑkˈtægənl/ adjective:  an octagonal room
随便看	ambition ambitious ambitiously ambitiousness ambivalence ambivalent ambivalently amble ambrosia ambulance ambulance chaser ambulatory ambush ameliorate amelioration amen amenable amend amendment amendment process amends amenity Amerasian America America First Committee, the

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